کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7710009 | 1497397 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Efficient solar water oxidation by WO3 plate arrays film decorated with CoOx electrocatalyst
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
We report the synthesis and photoelectrochemical characterization of CoOx oxygen evolution catalyst modified two-dimensional (2D) WO3 plate arrays photoelectrode. The 2D-WO3 plate arrays were prepared perpendicularly on the FTO substrate by hydrothermal method. The CoOx nanoparticles were deposited on the surface of WO3 plate arrays on FTO by chemical deposition process. The CoOx nanoparticles are distributed on the surface of WO3 plates with a diameter of about 20Â nm. The CoOx/WO3 film shows enhanced photoelectrochemical performance than the bare WO3 film. The highest incident-photon-to-current-efficiency (IPCE) value increases from 24.9% to 49.1% when introducing CoOx. The deposited CoOx electrocatalyst on WO3 surface can transfer holes effectively through the cobalt ion valency cycle, suppress the hole's accumulation and recombination at the electrode surface, achieve the superior kinetics and consequently enhance the overall solar water oxidation efficiency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 28, 27 July 2016, Pages 11925-11932
Journal: International Journal of Hydrogen Energy - Volume 41, Issue 28, 27 July 2016, Pages 11925-11932
نویسندگان
Faqi Zhan, Wenhua Liu, Wenzhang Li, Jie Li, Yahui Yang, Yaomin Li, Qiyuan Chen,